Air-gun.



A. WISSLER.

AIR GUN.

APPLICATION FILED AUG.14, 1911.

Patented Nov. 25, 1913.

COLUMBIA vPLANpuR/WH co.. wAsHlNuToN. n. cY

f ITED STATES PATENT OFFICE.

ADOLPl-I WISSLER, 0F ST. LOUIS, MISSOURI.

AIR-GUN.

T0 all whom it may concern.'

Be it known that I, ADOLPH VissLnR, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Air-Guns, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had t0 the accompanying drawings, forming part of this specification, in which- Figure 1 is a vertical section taken lengthwise through the center of the barrel of my improved air gun, and with a part of the stock of said gun broken away. Fig. 2 is an enlarged detail section taken through the center of the trigger operated valve for controlling the egress of compressed air from the compressed air chamber into the pellet barrel. F ig. 3 is a horizontal section taken on-the line 3 3 of Fig. 2. Fig. 4 is a section similar to Fig. 2 and showing a modified form of the compressed air egress controlling valve.

My invention relates generally to air guns of the type sho-wn and described in the Benj amin Patent No. 822,645 dated June 5, 1906 and the principal objects of my present invention, are, first, to generally improve the construction of the air gun disclosed in the patent just mentioned; second, to provide a simple inexpensive valve which is operated by the trigger of the gun, and which controls the egress of compressed air from the compressed air chamber within the gun, which valve is self packing, thereby practically doing away with all leakage of air through said valve; third, to do away with the use of rubber in the egress valve for the reason that the use of rubber in valves is objectionable due to the fact that it wears rapidly, is comparatively short lived in service and rapidly disintegrates upon coming in contact with oil, which is frequently used in cleaning the gun, and for lubricating various moving parts; and, fourth, to provide a transversely adjustable rear sight for the gun.

To the above purposes my invention consists in certain novel features of construction and arrangement of parts hereinafter more fully described and claimed.

In the drawings, 1 indicates the stock to which is detachably applied in any suitable manner a barrel 2, and iiXed on the top of said barrel is the pelletbarrel 3. The for- I Specification of Letters Patent.

Application filed August 14, 1911.

Patented Nov. 25, 1913.

Serial N o. 644,276.

ward end of the barrel 2 is closed by a. plug 4, which serves as a guide for the piston rod 5. An opening 2a is formed through the .forward end of the barrel to permit the ingress of air to be compressed. The outer end of the piston rod 5 is provided with a button head 6, and the inner end carries a iexible cup-shaped valve 7 of leather or analogous material, which fits snugly within the barrel 2.

8 designates a buffer spring located upon the inner end of the rod 5 for absorbing shocks or jars incident to the outward pull of the piston rod. The rear end of the barrel 2 is closed by a fixed disk 9 provided with suitable packing 10, and located la short distance in front of this closed rear end is a disk 11, and thus a compression chamber 12 is .formed within the rear portion of the barrel 2. Seated in the disk 11 is an ordinary check valve 13, which permits tbe air compressed behind the piston 7 to enter the chamber 12.

ARigidly fixed in any suitable manner in the top of the barrel 2 immediately in front of the disk 9 is a vertically disposed cylindrical block 14 within which is formed a vertically disposed bore or chamber 15. The rear end of the pellet barrel 3 is fixed to the member 14 and the upper end of the chamber 15 has direct communication with the opening through said pellet. barrel. Fitting snugly upon the lower portion of the member 14 and adapted to slide vertically thereon is a cup 16, the wall of which is provided with a series of openings 17. A packing ring 18 preferably of leather or analogous material is seated in the bottom of thiscup, and held therein by means of a screw 19, which is seated in the bottom of the cup. The annular space between the head of this screw and the wall of the cup 16 is normally occupied by the lower edge .of the member 14 and which lower edge rests directly upon the packing ring 18. An expansive coil spring 2O is interposed between the bottom of the barrel 2 and normally forces said cup upward against the lower end of the member 14.

Formed through the member 14 to the rear of the bore or chamber 15 is a verticallv disposed bore 21, and of small diameter, and arranged for movement therein is a pin 22 the lower end of which rests on top of the screw 19. The upper end of this pin 22 is engaged by the forward end of the horizontally disposed upper port-ion of the trigger 23, which latter is fulcrumed on a pin 24, and extends downward through the rear portion of the barrel 2, and the stock 1. The forward end of the horizontal portion of the trigger operates through an opening 25 formed in the member 14, and communicating with the upper end of the bore 21.

Formed in the upper end of the member let is a transversely disposed slot 26 which is occupied by the lower portion of a small plate 27 in the top of which is formed a notch 27a. This plate forms the rear sight for the gun, and formed in the front face of said plate is a transversely disposed groove 28, a screw 29 is seated in the top of the member 14, and the head of said screw occupies the groove 28. lhen this screw is loosened the plate 27 can be adjusted transversely as desired and is locked after adjustment by tightening the screw 29.

The pellet tube 3 is contracted as designated by 30 at a point immediately in front of the member let for the purpose of arresting and holding in position the leaden pellet shown by dotted lines in Fig. 1, which is dropped into the pellet tube through the muzzle thereof.

The compression chamber 12 is charged with compressed air by reciprocating the pist-on and piston rod several times through the forward portion of the barrel 2, and which action forces the air in front of the piston 7 through the check valve 13 into the compression chamber 12. lhen this chamber is fully charged the air compressed therein, together with the pressure exerted by the spring 20 holds the cup 16 firmly upon the lower portion of the member 14C, and the lower end of said member 14 fitting snugly upon the iexible seat 18 effectually prevents the compressed air from leaking through the egress valve. The gun is now held in an upright position and the leaden pellet is dropped into the muzzle of the pellet barrel 3 and when said pellet reaches the contracted portion of said pellet barrel it lodges by being wedged in said contracted portion and the gun is ready to be discharged. Pressure of the finger upon the lower end of the trigger 23 swings said trigger upon its fulcrum thereby moving the forward end of the horizontally disposed portion of said trigger downward, thereby impart-ing corresponding downward movement to the pin 22. The lower end of this pin bears on top of the screw 19, and as a result said screw and the cup 16 in which said screw is seated are moved downward, thereby moving the flexible seat away from the lower end of the member 14, thus permitting the compressed air to escape through the openings 17 thence through the bore or chamber 15, and from thence into and through the pellet barrel 3, and the force extrigger is released the spring 20 restores the cup 16 to its normal posit-ion.

In the modified form illustrated in Fig. 4c, a ring 31 is formed on or fixed to the central portion of the member 141 and located within said ring is a packing ring 32 of leather or analogous material, and the upper end of the cup 16l of this construction normally occupies the ring 31 and bears against the packing ring 32.

An air gun of my improved construction is comparatively simple and is equipped with a compressed air egress valve which is practically self packing, while in service, thereby preventing leakage of compressed air from the compression chamber and in which valve the use of rubber is dispensed with.

It will be readily understood that minor changes in the form, size and construction of the various parts of my improved device may be made and substituted for those herein shown and described without departing from the spirit of my invention, the scope of which is set forth in the appended claims.

I claim: i

1. In an air gun, the combination with a compression chamber, and pellet barrel, of a hollow valve member seated in the wall of the compression chamber and having communication with the interior of the pellet barrel` a perforated cup loosely mounted on the lower end of the valve member, a packing member between the cup and the valve member, and means for moving the perforated cup upon said valve member. I

2. In an air gun, the combination with a compression chamber and a pellet barrel, of a valve member seated in the wall of the compression chamber and having communication with the interior of the pellet barrel, a perforated cup loosely mounted on the lower portion of the valve member, a packing member between the cup and the valve member, a pin operating through the valve member, and bearing upon a part of the cup and means for actuating said pin.

3. In an air gun, the combination with a compression chamber, and pellet barrel, of a hollow valve member seated in the wall of the compression chamber and having communication with the opening in the pellet barrel, a spring pressed perforated cup loosely mounted on the lower end of the valve member and a flexible packing member between the cup and valve member.

et. In an air gun, the combination with a compression chamber and pellet barrel, of a hollow valve member seated in the wall of the compression chamber and having communication with the opening in the pellet barrel, a spring pressed perforated cap' loosely mounted on the lower end of the valve member, a flexible packing member between the cup and valve member, Yand means operating through the valve member for unseating the cup.

5. In an air gun, the combination with a compression chamber and pellet tube, of a hollow valve member .adapted to establish communication between the compression chamber and interior of the pellet barrel, a cup mounted for sliding movement on the lower portion of the valve member and the vertical wall of which cup is perforated.

6. In an air gun, the combination with a compression chamber and pellet tube, of-a hollow valve member adapted to establish communication between the compression chamber and interior of the pellet barrel` a cup mounted for sliding movement on the lower portion of the valve member, the vertical wall of which cup is perforated, and a packing member between said cup and valve member.

7. In an air gun, the combination with a compression chamber and pellet tube, of a hollow valve member adapted to establish communication between the compression chamber and interior of the pellet barrel, a cup mounted for sliding movement on the lower portion of the valve member, the vertical wall of which cup is perforated, a packing member between said cup and valve member, and means for moving the cup on said valve member.

8. In an air gun the combination with a compression chamber and a pellet barrel, of a valve member seated in the wall of the compression chamber and communicating with the pellet barrel, a cup arranged for movement on the lower end of said valve member, the wall of which cup is provided with ports, a pin operating through the valve member for engaging and unseating the cup, and a trigger for actuating said pin.

9. In an air gun, the combination with a compression chamber' and a pellet tube of a hollow valve member adapted to establish communication between the compression chamber and the interior of the pellet tube, a cup arranged for sliding movement on the lower portion of the valve member the vertical wall of which cup is perforated, a packing member, vbetween said cup and valve member a sliding pin for moving the cup and a trigger adapted to engage and move the sliding pin.

10. In an air gun the combination with a compression chamber and a pellet tube, of a hollow member `adapted to establish communication between the compression chamber and the interior of the pellet tube, a

spring-pressed valve member adapted to normally close the passage way through the hollow member, the vertical wall of which valve member is perforated, a pin arran ed to slide through the hollow member, an a trigger adapted to bear against said pin for actuating said valve member.

11. In an air gun, the combination with a compression chamber and a pellet tube, of a hollow member adapted to establish communication between the compression chamber and the interior of the pellet tube, a sprin pressed valve member adapted to normally close the passage way through the hollow member, a pin located wholly within and arranged for. sliding movement through the hollow member, there being an opening in the hollow member communicating with the recess in which the pin operates, and a trigger, one end of which is positioned in said opening and normally bears against the upper end of the pin for moving the valve member relative to the hollow member.

12. In an air gun having a compression chamber and a pellet barrel, a hollow valve member seated in the wall of the compression chamber and having communication with the pellet barrel, and a spring-pressed ported member mounted for sliding movement on the hollow valve member for normally closing the passage way therethrough.

13. In an air gun having a compression chamber and a pellet barrel, a hollow valve member seated in the wall of the compression chamber and having communication with the pelletbarrel, a spring-pressed ported member mounted for sliding movement on the hollow valve member for normally closing the passage way therethrough, and means operating through the hollow valve member for moving the ported member to permit air to pass through the hollow valve member.

14. In an air gun having a compression chamber and a pellet barrel, a hollow valve member seated in the wall of the compression chamber and having communica-tion with the pellet barrel, a spring-pressed ported member mounted for sliding movement on the hollow valve member for normally closing the passage way therethrough, a push pin operating through the hollow valve member and bearing on the ported member, and a trigger for actuating said push pin.

In testimony whereof I hereunto aflx my signature in the presence of two witnesses, this 4th day of August, 1911.

ADOLPH WISSLER.

Witnesses M. P. SMITH,

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

